Title :
Distributed storage codes reduce latency in vehicular networks
Author :
Sathiamoorthy, Maheswaran ; Dimakis, Alexandros G. ; Krishnamachari, Bhaskar ; Bai, Fan
Author_Institution :
Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We investigate the benefits of distributed storage using erasure codes for file sharing in vehicular networks through realistic trace-based simulations. We find that coding offers substantial benefits over simple replication when the file sizes are large compared to the average download bandwidth available per encounter. Our simulations, based on a large real vehicle trace from Beijing combined with a realistic radio link quality model for a IEEE 802.11p dedicated short range communication (DSRC) radio, demonstrate that coding provides significant cost reduction in vehicular networks.
Keywords :
cost reduction; mobile radio; network coding; peer-to-peer computing; IEEE 802.11p DSRC radio; IEEE 802.11p dedicated short range communication radio; average download bandwidth; cost reduction; distributed storage code reduce latency; erasure code; file sharing; real vehicle tracing; realistic radio link quality; realistic radio link quality model; realistic trace-based simulation; vehicular network; Ad hoc networks; Bandwidth; Delay; Encoding; Redundancy; Vehicles;
Conference_Titel :
INFOCOM, 2012 Proceedings IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-0773-4
DOI :
10.1109/INFCOM.2012.6195671
